John keller



(No Model.)

J. KELLER.

PRINTING MACHINE. No. 394,700. Patented Dec. 18, 1888.

fizeaaecs: .Ezwzz Z01? n J (55W W M UNITED STATES JOHN KELLER, OF

PATENT OFFICE.

NEW YORK, N. Y.

PRINTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 394,700, dated December 18, 1888.

Serial No. 252,337. (No model.)

To (LZZ whom it may concern.-

Be it known that I, JOHN KELLER, of New York, in the county and State of New York, have invented new and useful Improvements in Presses for Printing Rules and Similar Articles; and I do hereby declare that the following is a full and accurate description of the same.

A great variety of useful articles made from wood or other material are now used for advertising purposes, having advertisements imprinted in addition to the useful matter which is depended on to cause the article to be preserved with the advertisement. Among such articles, short rules, graduated as measures of length, are perhaps the most common; and my invention is designed to print the desired matter on the same, though it is not my purpose to confine my invention to that class of articles.

The accompanying drawing is a perspective view of my invention.

A is the frame which supports the operative mechanism of my press, and B C are the two cylinders, which necessarily bear the following relation: The circumference of one must be equal to ora multiple of the circumference of the other, and they are necessarily run at equal face-speeds. The cylinder B carries on its surface the printing or type form E. In the machine shown in the drawing there are three such forms. These type-forms may contain the types constituting the graduated scale for measurements, or may contain the advertising or other matter in print. At each revolution said form is carried under a series of inking-rollers, 11*, mounted in a stationary roller-carriage or frame, G. The cylinder 0 has a OOITPSPOIHIlllg' number of impressionbeds, H, and feeding pins or ribs 1, in proper close proximity to the edge of the impressionbed, so that when the rule or other object to be printed upon is being carried forward by said parts it will rest upon said impressionbed and be carried properly under the typc- 1 form. A hopper or feed-tube, K, holds the blank 1 rules, and is provided near its bottom and at its I front side with a guard, 75, (which may extend to the top of the hopper,) situated at a dis l tance in front of the back of thehopper equal l to the width of the article to be printed. The guard k is also situated at a distance above the periphery of cylinder 0 greater than the thickness of one of the articles and less than the combined thickness of two of said articles. It thus allows them to escape, one at a time, at its bottom, the escape being effected by means of the pins or ribs I which pass beneath the hopper, engage the lowermost rule, and push it out from beneath the remainder. The hopper stands so close to the roller that the rule cannot escape passing between the type and the im pression-bed.

By placing the guard is at the described distance in advance of the back of the hopper, it is insured that the article shall be kept right side up and receive the impression on the desired side and on no other.

After being printed the rule is discharged by centrifugal force and gravity.

I am aware that cylinder printing-machines are common; and therefore I do not propose to claim broadly a printing-machine wherein the type is carried by one cylinder and the printing-bed by another and moving at equal surface-speeds, but no such'press has, so far as I know, been constructed for the purpose or adapted to automatically feed, print, and discharge the articles of irregular shape that is to say, such as are of greater width than thickness.

llaving described my invention, I claim 1. A printingmachine adapted to print wooden rules and other similar articles, comprising, in combination, two cylinders, the periphery of one being equal to or a multiple of the periphery of the other, mounted on parallel shafts and provided with gearing adapted to rotate them at equal surface- ,speeds, a printing form or forms of types or plates on one cylinder and a corresponding impression bed or beds on the other, one or more inking-rollers, a feed-hopper with its lower end in close proximity to the periphery of one of said cylinders, and feed projections rigid with the cylinder on said periphery and adapted to engage the rear side of, push out, and feed forward the lowest rule in said hopper, the cylinder having the printing-form being above the other cylinder and adapted to make the impression while the article is upon the upper face of the latter cylinder,

the articles to the surface of the latter, said impression-cyl inder being provided with the IO feed projections I, rigid with and constantly projecting from its surface, substantially as set forth.

JOHN KELLER. itnesses:

ADAM KELLER, JoHN A. ROE. 

